//打印出如下图案(菱形)
//*
//***
//******
//********
//******
//***
//*

package main

import (
	"fmt"
)

func main() {
	count := 6
	for i := 0; i <= count; i++ {
		for j := 0; j < i; j++ {
			fmt.Print("*")
		}
		fmt.Println()
	}
	for i := count - 1; i >= 0; i-- {
		for j := 0; j < i; j++ {
			fmt.Print("*")
		}
		fmt.Println()
	}
}
